With many Sydneysiders still nervous to enter the water following a spate of bull shark attacks over the past few weeks, we put the safety of several popular swimming spots to the test. #9News Watch the full story: https://youtu.be/IEzMsbYSYC8 | 9 News Sydney

Bull sharks have a surprising adaptability: they are able to move freely between salt and fresh water. Tune-in to five full weeks of Sharkfest on National Geographic every night at 8/7c—and available next day on Hulu. | National Geographic

Meet the world's largest bull shark ever recorded. Don't miss more Sharkfest tonight at 8/7c. | National Geographic